 Purdue University Memorial Union from State Street. West Lafayette, Indiana, March 10, 1998.
 Purdue University Mall and Bell Tower. West Lafayette, Indiana, February 27, 1998.
 Fountain of Purdue University Mall. West Lafayette, Indiana, March 10, 1998.
 Pablo Serra and Huan Pablo Neirotti at a dinner in a restaurant near Purdue University. West Lafayette, Indiana, February 26, 1998.
 Purdue University Hall and Recitation Building. West Lafayette, Indiana, March 10, 1998.
 Remains of a fan (?) and books after a fire in the theoretical chemistry lab of Purdue University at Memorial Day. West Lafayette, Indiana, June 1, 1999.
 Burned part of the theoretical chemistry lab (there was a bookshelf) after a fire at Memorial Day. Purdue University, West Lafayette, Indiana, June 1, 1999.
 A burned desk in the theoretical chemistry lab (there was a coffee pot?) after a fire at Memorial Day. Purdue University, West Lafayette, Indiana, June 1, 1999.
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 S.-w. side of Purdue Mall, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 Purdue Mall, the fountain, and Hall of Administration, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 6th(?) Street near intersection with Union Street. Lafayette, Indiana, March 21, 1998.
 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 Grand View Cemetery. West Lafayette, Indiana, February 8, 1998.
 - West Lafayette, Oct. 26-28 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - West Lafayette, Oct. 26-28 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - West Lafayette, Oct. 26-28 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - West Lafayette, Oct. 26-28 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - A park near Celery Bog in West Lafayette 10/25/98 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 Purdue University Mall. West Lafayette, Indiana, October 10, 1999.
 Fountain of Purdue University Mall. West Lafayette, Indiana, September 21, 1999.
 Founders Park in Purdue University. West Lafayette, Indiana, September 21, 1999.
 Purdue University Mall during afternoon hours. West Lafayette, Indiana, September 21, 1999.
 Purdue University Mall and Electrical Engineering Building. West Lafayette, Indiana, September 26, 1999.
 View of Purdue University Mall from the second floor of Electrical Engineering Building. West Lafayette, Indiana, September 21, 1999.
 View of trees cut by beavers and industrial buildings on the opposite side of Wabash River from Heritage Trail to Fort Ouiatenon. Near West Lafayette, Indiana, February 8, 1998.
 - Near Clinton, West Indiana 6/28/98 (Lafayette, May 24 - July 12, 1998)
 A grey squirrel gnawing a nut on its home range near Mechanical Engineering Building. Purdue University, West Lafayette, Indiana, October 1, 1999.
 Pablo Serra, Huan Pablo Neirotti and Alexei Sergeev at a dinner in a restaurant on State Street. West Lafayette, Indiana, February 26, 1998.
 View of Fairfield and Alcoa plants from S. R. 52. Lafayette, Indiana, February 7, 1998.
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Purdue campus 6/6/98 (Lafayette, May 24 - July 12, 1998)
 - Purdue campus 6/6/98 (Lafayette, May 24 - July 12, 1998)
 Heron Island on Wabash River between Lafayette and Battle Ground, Indiana, February 22, 1998.
 Heritage Trail along Wabash River between Lafayette and Battle Ground, Indiana, February 22, 1998.
 Heritage Trail along Wabash River between Lafayette and Battle Ground, Indiana, February 22, 1998.
 State Street near Chauncey Hill Mall. West Lafayette, Indiana, March 10, 1998.
 - Watching sparrows in grassland near Universal mine, West Indiana 6/28/98 (Lafayette, May 24 - July 12, 1998)
 - Watching sparrows in grassland near Universal mine, West Indiana 6/28/98 (Lafayette, May 24 - July 12, 1998)
 Remains of a cardinal (the state bird of Indiana) on a trail from Lafayette to Battle Ground along Wabash River. Indiana, January 31, 1998.
 A raccoon eaten by an eagle(?) on Heritage Trail from Lafayette to Fort Ouiatenon. Indiana, February 8, 1998.
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 - near Agricultural Mall in Purdue campus 4/28/98 (Lafayette, April 5 - 28, 1998)
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 Corn farm near Heritage Trail along Wabash River from Lafayette to Fort Ouiatenon. Indiana, February 8, 1998.
 Rapid flow of Wabash River. Heritage Trail from Lafayette to Fort Ouiatenon, Indiana, February 8, 1998.
 A church at State Street opposite to Chauncey Hill Mall. West Lafayette, Indiana, March 10, 1998.
 Fountain near John Purdue grave, Purdue University, West Lafayette IN, January 3, 1999.
 Purdue Mall and Administration Hall at Purdue University, West Lafayette IN, 20 June, 1999.
 Overcoming a tub in a creek in Potholes Park (Fall Creek Gorge) by an international student of Purdue University. Near Pine Village, Indiana, June 5, 1999.
 Fountain of Purdue Mall and Bell Tower at Purdue University, West Lafayette IN, 20 June, 1999.
 - Purdue University 8/13/98 - The lab in the Department of Chemistry 9/1/98 (Lafayette, July 12 - September 1, 1998)
 View of Wabash River and Heron Island from Heritage Trail between Lafayette and Battle Ground, Indiana, February 14, 1998.
 View of a sewage plant on Wabash River from Heritage Trail between Lafayette and Fort Ouiatenon. Indiana, February 8, 1998.
 Baby snakes on a trail along Wabash River under State Street bridge. West Lafayette, Indiana, March 21, 1998.
 Winter mushrooms (velvet foot, Flammulina velutipes) on Heritage Trail between Lafayette and Fort Ouiatenon, Indiana, February 21, 1998.
 A lecture of Sabre Kais Phase transitions and critical phenomena for electronic structure of atoms and molecules (?) at internal meeting of the quantum chemistry group of Purdue University. West Lafayette, Indiana, September 21, 1999.
 Pablo Nigra, Qicun Shi, Stephen Belair, Imad Ladadwa and Ricardo A. Sauerwein ready to listen a lecture of S. Kais at internal meeting of the quantum chemistry group of Purdue University. West Lafayette, Indiana, September 21, 1999.
 Intersection of State Street with South Street (The Village area, shopping district). West Lafayette, Indiana, March 10, 1998.
 Downtown Lafayette. Indiana, January 18, 1998.
 - Near Wabash River 5/24/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Near Wabash River 5/24/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Near Wabash River 5/24/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Near Wabash River 5/24/98 (Indiana and Lafayette, May 15 - 24, 1998)
 Ferry Street. Lafayette, Indiana, March 22, 1998.
 Cincinnati(?) Street. Lafayette, Indiana, March 21, 1998.
 An alley in downtown Lafayette. Indiana, January 18, 1998.
 Main Street in downtown Lafayette. Indiana, January 18, 1998.
 A house at State Street. Lafayette, Indiana, January 18, 1998.
 Main Street in downtown Lafayette. Indiana, January 18, 1998.
 Main Street in downtown Lafayette. Indiana, January 18, 1998.
 A house at South 9th Street. Lafayette, Indiana, January 18, 1998.
 Tippecanoe Battlefield, north from Lafayette. Indiana, January 31, 1998.
 I-65 road between Lafayette and Chicago during a snow storm. Indiana, March 9, 1998.
 Abandoned old houses at State Street. Lafayette, Indiana, January 18, 1998.
 A statue at the top of Tippecanoe County Court House. Lafayette, Indiana, January 18, 1998.
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